Valve mechanism for internal-combustion engines.



PATENTED MARK 6, 190 3.

VALVE MECHANISM FOR ZNTS Elk; AL QOMBUSTION ENGINES APPLICATION FILEDAUG.Z7,1904.

UNITED STATES rerun errron.

HERBERT AUSTIN, OF BIRMINGHAM, ENGLAND, ASSIGNOR TO THE WOLSELEY TOOLAND MOTOR CAR COB'IIANY, LIMITED, OF

' BIRMINGHAM, ENGLAND.

VALVE MECHANlSiM FOR INTERNAL GQMBUSTION ENGINES:

Application filed August 27, 190 flerial No, 222,418.

1'0 allwhom it may concern.-

Be it known that I, I'IERBERT Austria, en-

gineer, a subject of the King of Great Britain, residing at BerwoodGrove, Chester Road, in the city of Birmingham, England, have inventedcertain new and useful Improvements in Valve Mechanism forInternal-Combustion Engines, of which the following is a specification.

This invention has for its objects improved means of a simple characterby which the area of opening of an air-valve of an internalcombustionengine may be readily varied and improved means of.: arry ing a portionof themechanism used in connection with an air-valve or air-valves of asingle, double, or multiple cylinder internal combustionengine whichenable such portion of the mechanism to be removed and replaced mew-tbeing taken to ieces.

The part of t e invention by which the ob- 'ect first-above named iseffehted consists,

roadly stated, in regulatingillie area of opening of the valve by movinginward or outward, as required the fulcrum of the lever through themedium of which therod which is moved by a camopefis the valve. Thislever is fulcrumed within a slider which is capable of movement insuitable guides in a direction to "move the fulcrum outward, or, in

the opposite'direction, to move it inward;

Accordin to a convenient method of operating the s ider it is constantlypressed in an outward direction by a spring which presses against oneend thereof and is moved in the opposite direction against such pressureby a screw which resses against the other end of the slider. T threaded,so that a very partial turnwill be sul'licient to move the slider themaximum distance which can' at any time be required, and the screw maybe readily turned through the medium of a sideway-arm thereof, connectedthrough the inedium of a rod with the hand or governor mechanism bymeans of which the regulation is to be effected.

The means according to this invention by which the object second-abovestated is offected comprises in the case of a single motorcylinder amounting which is fitted around the outer end of the air-valve box andis held thereupon by pillar-screws from the breech Specification ofLetters Patent he screw is preferably quick-,

"Patented March 6, 1906.

may be, carries the lever or levers which are operated by the rod orrods which are themselves o erated by the cam or cams and has the guideor guides for such rod or rodsformed therein, and the slider aforesaidor each slider is conveniently carried to slide within guides formed inopposite sides of the mounting, and the spring therefor is carriedwithin a recess formed in the mounting. The screw for the slider or eachslider is screwed within a cross.- piece which bridges across the spacebetween and joins the said sides at their outer edges or tops. withoutdisconnecting therefrom the lever or levers or the spring or springs orscrew or screws.

In the drawings which illustrate my invention, Figure 1 shows, as to theleft-hand half thereof, a vertical section through the air-valve chamberfor one of the cylinders of a .vertical-cylinder engine and the means bywhich the area of the opening of the valve is regulated and the means ofcarrying parts of the air-valve mechanism and, as to the righthand half,a corresponding outside elevation in relation to the other cylinder.Fig. 2 is a plan view of the parts shown by Fig. 1. Fig. 3 is atransverse section taken in the lane indicated by the line at a; of Fig.1 of the mounting by which a portion of the airvalve mechanism iscarried; and Fig. l is a transverse section through such mounting andthrough the means for re ulating the area ofair-valve openin", taken inthe plane indicated by line 1 y of Big. 1.

In the several views such parts only are shown as are necessary to makethe invention clear.

Describing first the means of regulating the area of air-valve opening,the pivot-pin A, upon which each valve-lever B is respectivel yfulcrumed', is mounted within a bridle C, the opposite sides of whichare fitted to slide Within. vertically slotted openings a,

formed through opposite sides of a mountingi), which is rigidlyconnected with the brace i The mounting may be removed.

of the cylinder. he breech ends E of the cylinders, which are marked bybroken iin Big. 1, are shown only by such figure. Each bridle (I isconstantly pressed in an upward direction by means of a spiral springI), which is largely contained within a recess formed down within themounting I) for such purpose, and each bridle may he moved down againstthe pressure of the spring and 'o retained against such iressure in anydesired position by means or a screw 0, which is screwed through abridge-piece d, which passes acrossabore the bridle C and is rigid withthernounling 1), being formed conveniently integral with the sides k ofthe mounting. The height oi the fulcrum center of a lever B, andconsequently the area of opening of the corresponding air-valve F, maybe readily regulated through the medium of the screw 0. The regulationmay be effected either through the medium of a rod m. from a governor,as will be readily understood, or by hand, eoiweniently through themedium in either case of an arm c of the/screw. In the arrangementillustrated the bossfof each lever is "us-t an easy between facedportions g o the opposite sides of the mounting U and is also just aneasy fit between the o its sides of the bridle C, whereby t inprevinited from sidewise movement 1 to iountinp; D. i

Gila The mountin' -i is fitted around turned portions a of the outerends of the air-valveioxrs G and is held thereupon by pillar- 3 5 screwsH from the breech ends E of the cylindcrs. This including not onlycarries the levers B, but has formed therewith the upper guides for thevalvc-rods i,,,thr0ugh the medium of which the yalve-levers B areoperated .0 from the. cams. The mounting D may be removed from the valveboxes and pillarscrews without disconnecting therefrom the lovers 3 orthe springs b or screws 0. It a mounting, such as l), is required for asingle cylinder engine only, it is similarly constructed as whenrequired for a two-cylinder engine, but is of course shortened. Ii". themounting in to be used with tin engine having more than two cylinders,it made with the portions for each cylinder i itegral with one anotherand is supported lily a pillar-screw from each breech end or btherwise.by as :many of such screws as may be desirable.

in the case of a horizontal engine the screws ll, herein described aspillar-screwsf would or course themselves be horizontal.

It will be obvious that the means of carrying the fulcrum oi the lever Bto enable its position to be regulatedlior the purpose above shown maybe varied, and I do not limit myself, therelore, to'the particular meansof doing this which are described and illustrated, though these are themeans I prefer for the purpose.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. Means of re ulating the area of opening of an air-valve 0 aninternal-combustion engine which comprise a level through the mcdium ofwhich the valve is o erated, means for actuating said lever, a bri eWithin which the lever is fulcrumed, guides within which such bridle maymove in an inward and outward direction, a s ring which tends to move 75 the bridle in one irection along its ides, and a screw device by-whichthe brid e may be moved in the opposite direction against the pressureof the spring, substantially as set forth. 7 8o 2. Aninternal-combustion engine with a plurality of motor-c linders, havingvalve- )oxes, mountings w ich are integral with each other and fitdetachably about the outer ends of the said valve-boxes, breech-endpillaiscrews which aid in Sun orting said mountings on the cylinders, anvalve actuatin mechanism of the cylinders carried by an removable withsaid mountings, substantially as set forth. 9o 3. An internal-combustionengine, having two motor-c linders disposed side by side, and providewith valve-boxes on their respective breech ends, a mounting extendingacross and. fitting dctachably about the re- 5 s eetive valve-boxes,illar-sorews between t e ends of the respective cylinders and the endsof said mountin and valve-actuating mechanism of the cylinders carriedby the said mounting and removable therewith, sub :00 stantially as setforth. I 4. An internal-comlmstion engine, havin a valve-box on itscylinder, a mounting which is fitted dctaehably about the outer end ofsaid valve-box, breech-end pillar-screws so :05 disposed as to act asadd'itional'supports for said mounting, and valve-actuating meohan-- ismcarried by said mounting and removable therewith.

1 5. Means for regulating the area of opening 1 10 of an air-valve of aninternal-combustion engins, which comprise a lever through the medium ofwhich the valve is operated, means for actuating said lover, an inwardlyand outwardly adjustable fulcrum for such level", a spring devicetending to move the fulcrum in one direction, and an adjustable stop bymeans of which the fulcrum may be moved in tllie opposite direction,substantially 'as set ort L 1 In witness whereof I have hereunto signedmy name,,this 17th day of August, 1904, in the presence oi twosubscribing witnesses.

HERBERT AUSTIN.

Witnesses:

Ronna'r G. Gnouss, ETIIEL M. WILLIAMS.

